blocks|key|1404596|text|向量只是一系列的值，都是相同类型的。这与数学中的使用非常一致。我猜，向量应该支持一些常见操作(如加法和标量缩放)的数学想法并没有继续下去，重要的方面主要是结构。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1404597|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

A vector is simply a sequence of values, all of the same type. This is pretty much in line with the use in mathematics. I guess the mathematical idea that vectors should support some common operations (such as adding, and scaling by a scalar) are not carried over, the important aspect is mainly the structure.

blocks|key|1404633|text|我猜它来自于术语row+vector。此外，计算机科学家喜欢为事物想出新的名字。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1404634|entityMap|0|LINK|mutability|MUTABLE|url|http://en.wikipedia.org/wiki/Row_vector^0|8|A|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

I'd guess it comes from the term <a href="http://en.wikipedia.org/wiki/Row_vector" rel="nofollow noreferrer">row vector</a>. Also, computer scientists love thinking up new names for things...

blocks|key|1404677|text|另外，如果你让它存储整数或浮点数，那么对于存储N维向量来说，它确实是一个很好的类型。毕竟向量是，是按特定顺序保存的数字的列表。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1404678|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

Also if you make it store integers or floating points it does make an excellent type for storing N dimensional vectors. After all all a vector is, is a list of numbers kept in a specific order.

blocks|key|1619391|text|这个名称来自线性代数，其中向量是只有一列或只有一行的矩阵。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1619392|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

The name comes from the linear algebra, where vector is matrix with only one column or only one row.

blocks|key|1404750|text|不知道真正的原因，但C%2B%2B将其称为向量而不是数组，减少了C和C%2B%2B结构之间的混淆，尽管它们履行相同的角色。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1404751|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

No idea about the real reason, but C++ calling it a vector instead of an array, reduces confusion between the C and C++ structures, although they fulfill the same roles.

blocks|key|1619497|text|仅仅为了说明为什么它可能不被称为array：因为std::vector有一个动态大小。数组的长度在概念上是固定的。顺便说一句，Next+C%2B%2B标准有一个std::array模板，它的大小是固定的，应该比普通数组更好：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1619498|std::array<int,+4>+f+=+{+1,+2,+3,+4+};|code-block|syntax|javascript|1619499|entityMap^0|G|5|O|B|24|A|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@$9|N|A|O|B|C]|$9|P|A|Q|B|C]|$9|R|A|S|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|T|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|U|8|@]|D|@]|E|$]]]|L|$]]

Just to say why it probably isn't called <code>array</code>: Because <code>std::vector</code> has a dynamic size. An array conceptually is fixed in length. Next C++ Standard by the way has a <code>std::array</code> template, which is fixed in size and should be preferred over a plain array:

<pre><code>std::array&lt;int, 4&gt; f = { 1, 2, 3, 4 };
</code></pre>

blocks|key|1404806|text|它之所以被称为向量，是因为标准模板库的设计者Alex+Stepanov正在寻找一个名称，以将其与内置数组区分开来。他现在承认他犯了一个错误，因为数学已经使用术语“向量”来表示固定长度的数字序列。C%2B%2B11引入了一个类“数组”，它的行为类似于数学向量，从而加剧了这一错误。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1404807|Alex的教训:每次命名时都要非常小心。|1404808|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

It's called a vector because Alex Stepanov, the designer of the Standard Template Library, was looking for a name to distinguish it from built-in arrays. He admits now that he made a mistake, because mathematics already uses the term 'vector' for a fixed-length sequence of numbers. C++11 compounds this mistake by introducing a class 'array' that behaves similarly to a mathematical vector.

Alex's lesson: be very careful every time you name something.

blocks|key|1619580|text|想知道类型上的参数化对名称的影响..|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1619581|在这里，一列被炸毁了..(查看一些服务器端ASP.NET+HTML编码技巧的源代码)|1619582|还是一场争吵？|1619583|再说一次，在MIMD甚至SSE向量机的上下文中考虑它，这个名字听起来仍然非常好。|1619584|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|J|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|K|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|L|8|@]|9|@]|A|$]]|$1|F|3|G|5|6|7|M|8|@]|9|@]|A|$]]|$1|H|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|I|$]]

Wonders that parametrisation on types does to names.. 

here
a
column
gets
 blasted.. (view source for some server-side ASP.NET HTML encoding skills)

or was it a row?

Then again, thinking of it in MIMD or even SSE vector machine context, the name still sounds damn good.

blocks|key|1619614|text|它来自于由向量构成的矩阵的结构|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1619615|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

it comes from the structure of matrix which build from vectors

blocks|key|1619647|text|但是数学向量不是动态的，我从来没有见过从2D到3D或其他任何变化，如果有任何传统的数组使向量更好的话。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1619648|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

but mathematical vectors aren't dynamic, I've never seen one change from 2D to 3D or anything else, if anything traditional arrays make for better vectors.

blocks|key|1404966|text|为了补充@MarkRuzon的出色回应：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1404967|亚历克斯说，为了给现在称为std::vector的东西起一个名字，他观察到Scheme和Common+Lisp​​给类似的数据结构起的名字。|offset|length|1404968|后来他承认他错了，因为C%2B%2B向量与数学中的向量没有任何关系。|1404969|他还说，他把一个50人的社区的错误引入了一个500万人的社区，所以这个错误很可能永远存在。|1404970|entityMap|0|LINK|mutability|MUTABLE|url|https://en.wikipedia.org/wiki/Scheme_(programming_language)|1|https://en.wikipedia.org/wiki/Common_Lisp|2|https://isocpp.org/^0|0|11|6|0|18|B|1|0|B|3|2|0|0^^$0|@$1|2|3|4|5|6|7|V|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|W|8|@]|9|@$D|X|E|Y|1|Z]|$D|10|E|11|1|12]]|A|$]]|$1|F|3|G|5|6|7|13|8|@]|9|@$D|14|E|15|1|16]]|A|$]]|$1|H|3|I|5|6|7|17|8|@]|9|@]|A|$]]|$1|J|3|-4|5|6|7|18|8|@]|9|@]|A|$]]]|K|$L|$5|M|N|O|A|$P|Q]]|R|$5|M|N|O|A|$P|S]]|T|$5|M|N|O|A|$P|U]]]]

To complement the excellent response from @MarkRuzon:

Alex said that to give a name to what is now called std::vector he observed the name that <a href="https://en.wikipedia.org/wiki/Scheme_(programming_language)" rel="noreferrer">Scheme</a> and <a href="https://en.wikipedia.org/wiki/Common_Lisp" rel="noreferrer">Common Lisp</a> ​​had given to similar data structures.

Later he admits he was wrong because <a href="https://isocpp.org/" rel="noreferrer">C++</a> vector has nothing to do with the vectors in mathematics.

He also says that he introduced an error of a community of 50 people to a community of 5 million people, so the error is likely to remain forever.

blocks|key|1405022|text|很久以前，在the+B+language中有向量类型。然后，C语言将它们称为“数组”。然后带有类的C和C%2B%2B语言就派生了它……|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1405023|这肯定不是故事的全部。如上所述，Stepanov做出了实际的决定。但是如果在C中仍然使用"vector“，结果可能看起来会有很大的不同。|1405024|PS。我想知道为什么C重新命名“数组”。确切的原因是什么？|1405025|PS2。对于像C%2B%2B这样的语言，数组更好地表示“一种类型包含要通过operator[]合理访问的元素”(即不是42some_array_object)，例如将std::map实例化为“关联数组”。|1405026|entityMap|0|LINK|mutability|MUTABLE|url|http://www.example.com/^0|6|E|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|R|8|@]|9|@$A|S|B|T|1|U]]|C|$]]|$1|D|3|E|5|6|7|V|8|@]|9|@]|C|$]]|$1|F|3|G|5|6|7|W|8|@]|9|@]|C|$]]|$1|H|3|I|5|6|7|X|8|@]|9|@]|C|$]]|$1|J|3|-4|5|6|7|Y|8|@]|9|@]|C|$]]]|K|$L|$5|M|N|O|C|$P|Q]]]]

Long time ago, in <a href="http://www.example.com/" rel="noreferrer">the B language</a> there are vector types. Then the C language called them "arrays". Then the C with Classes and the C++ language just derived it ...

This is certainly not the whole story. As mentioned above, Stepanov made the actual decision. But if "vector" was still used in C, the result maybe looks quite different.

PS. I wonder why C renames "array". What was the exact reason?

PS2. IMO for a language as C++, an array is better meaning "a type hold elements to be reasonably accessed via operator[]" (i.e. not 42[some_array_object]), e.g. an instantiation of std::map as an "associative array".

The question's pretty self-explanatory really. I know vaguely about vectors in maths, but I don't really see the link to C++ vectors.

Why is a C++ Vector called a Vector?

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这个问题真的很不言自明。我对数学中的向量略知一二，但我真的看不出与C++向量之间的联系。

问为什么C++矢量被称为矢量？
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